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Aramid fiber bulletproof vest polymer adhesive and preparation method thereof

A technology for aramid fiber and body armor, applied in the field of aramid fiber body armor polymer adhesive and its preparation, can solve the problems affecting the performance of aramid fiber body armor, low bonding strength, and easy scattering of fibers, etc. To achieve the effect of product safety and environmental protection, strong adhesion and good shape

Inactive Publication Date: 2017-12-05
SHANGHAI M LAND CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing adhesives have problems such as poor shaping, easy scattering of fibers, low modulus, low bonding strength, and poor toughness, which seriously affect the performance of aramid fiber body armor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] First, the steps to prepare the pre-emulsion are:

[0038] 1. Weigh 10kg of deionized water, dissolve 0.5kg of emulsifier in it, add it into the pre-emulsification kettle and start the agitator.

[0039] 2. Add 20kg of dibutyl maleate to the monomer dropping tank, and add it to the pre-emulsification tank at a constant flow rate.

[0040] 3. After the last drop is finished, add 50kg of vinyl acetate in the same way.

[0041] 4. After mixing 0.5kg of acrylic acid and 0.5kg of adhesion monomer, continue to add dropwise, and continue to stir for 30-40min after adding all the monomers, to obtain a milky white uniform emulsion.

[0042] 5. Put the obtained emulsion into a designated container for later use.

[0043] Next, the step of preparing a kind of aramid fiber body armor polymer adhesive of the present invention is:

[0044] 1. Put the weighed deionized water into the kettle, add 1kg of polyvinyl alcohol, raise the temperature to 90°C, keep it warm for about 2 hours...

Embodiment 2

[0055] First, the steps to prepare the pre-emulsion are:

[0056] 1. Weigh 20kg of deionized water, dissolve 1kg of emulsifier in it, add it into the pre-emulsification tank and start the agitator.

[0057] 2. Add 30kg of dibutyl maleate to the monomer dropping tank, and add it to the pre-emulsification tank at a constant flow rate.

[0058] 3. After the last drop is finished, add 60kg of vinyl acetate in the same way.

[0059] 4. After mixing 1 kg of acrylic acid and 1 kg of adhesion monomer, continue to add dropwise, and continue to stir for 30-40 minutes after adding all the monomers to obtain a milky white uniform emulsion.

[0060] 5. Put the obtained emulsion into a designated container for later use.

[0061] Next, the step of preparing a kind of aramid fiber body armor polymer adhesive of the present invention is:

[0062] 1. Put the weighed deionized water into the kettle, add 2kg of polyvinyl alcohol, raise the temperature to 90°C, keep it warm for about 2 hours a...

Embodiment 3

[0073] First, the steps to prepare the pre-emulsion are:

[0074] 1. Weigh 15.23kg of deionized water, dissolve 0.78kg of emulsifier in it, add it to the pre-emulsification tank and start the agitator.

[0075] 2. Add 24.37kg of dibutyl maleate into the monomer dropping tank, and add it into the pre-emulsification tank at a constant flow rate.

[0076] 3. After the last material is dripped, add 57.88kg of vinyl acetate in the same way.

[0077] 4. After mixing 0.91kg of acrylic acid and 0.82kg of adhesion monomer, continue to add dropwise, and continue to stir for 30-40min after adding all the monomers, to obtain a milky white uniform emulsion.

[0078] 5. Put the obtained emulsion into a designated container for later use.

[0079] Next, the step of preparing a kind of aramid fiber body armor polymer adhesive of the present invention is:

[0080] 1. Put the weighed deionized water into the kettle, add 1.15kg of polyvinyl alcohol, raise the temperature to 90°C, keep it warm...

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PUM

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Abstract

The present invention discloses an aramid fiber bulletproof vest polymer adhesive and a preparation method thereof. The preparation method comprises: S1, pumping deionized water into a reaction kettle, adding polyvinyl alcohol, heating, and stirring until completely dissolving; S2, cooling to a temperature of 60 DEG C, and adding an emulsifier, acrylic acid and a sodium hydroxide solution; S3, heating to a temperature of 67 DEG C, and adding an acrylamide aqueous solution; S4, heating to a temperature of 70 DEG C, and adding an ammonium persulfate aqueous solution; S5, heating to a temperature of 80 DEG C, and adding a pre-emulsification liquid; S6, heating to a temperature of 82 DEG C, and synchronously adding the pre-emulsification liquid and the ammonium persulfate aqueous solution in a dropwise manner; S7, adding the remaining pre-emulsification liquid into a monomer dropwise adding groove, and adding in a dropwise manner; S9, adding the ammonium persulfate aqueous solution at a temperature of 82 DEG C, carrying out thermal insulation, strengthening the reaction for 1 h, and adjusting the pH value of the system by using an alkaline solution to 7; and S10, adding a defoamer, stirring, cooling, filtering, and discharging the material. According to the present invention, the aramid fiber bulletproof vest polymer adhesive has advantages of good fiber setting property, high adhesion fastness, high glue film modulus, good flexibility, excellent performance, safety and environmental protection, and is the ideal product of the environmentally-friendly military material.

Description

technical field [0001] The invention relates to the technical field of water-based adhesives, in particular to an aramid fiber body armor polymer adhesive with good setting effect, good fastness, high toughness, large modulus and excellent comprehensive performance and a preparation method thereof. Background technique [0002] Bulletproof Vest, also known as bulletproof vest, bulletproof vest, bulletproof vest, bulletproof clothing, individual body armor, etc., is used to protect the human body from bullets or shrapnel. [0003] Body armor is widely used in both military and police applications. Although the protective equipment made of traditional steel materials can meet the bulletproof requirements, due to the shortcomings of steel materials such as heavy weight, too strong rigidity and poor comfort, not only will the user's mobility be restricted, but there is also the risk of bouncing and hurting people. Danger. With the continuous progress of material science, the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J131/04C08F218/08C08F222/14C08F220/06C08F220/56
CPCC08F218/08C09J131/04C08F222/14C08F220/06C08F220/56
Inventor 王以元
Owner SHANGHAI M LAND CHEM CO LTD